[thirdparty/git.git] / list-objects.c

#include "cache.h"
#include "tag.h"
#include "commit.h"
#include "tree.h"
#include "blob.h"
#include "diff.h"
#include "tree-walk.h"
#include "revision.h"
#include "list-objects.h"
#include "list-objects-filter.h"
#include "list-objects-filter-options.h"
#include "packfile.h"
#include "object-store.h"
#include "trace.h"

struct traversal_context {
	struct rev_info *revs;
	show_object_fn show_object;
	show_commit_fn show_commit;
	void *show_data;
	filter_object_fn filter_fn;
	void *filter_data;
};

static void process_blob(struct traversal_context *ctx,
			 struct blob *blob,
			 struct strbuf *path,
			 const char *name)
{
	struct object *obj = &blob->object;
	size_t pathlen;
	enum list_objects_filter_result r = LOFR_MARK_SEEN | LOFR_DO_SHOW;

	if (!ctx->revs->blob_objects)
		return;
	if (!obj)
		die("bad blob object");
	if (obj->flags & (UNINTERESTING | SEEN))
		return;

	/*
	 * Pre-filter known-missing objects when explicitly requested.
	 * Otherwise, a missing object error message may be reported
	 * later (depending on other filtering criteria).
	 *
	 * Note that this "--exclude-promisor-objects" pre-filtering
	 * may cause the actual filter to report an incomplete list
	 * of missing objects.
	 */
	if (ctx->revs->exclude_promisor_objects &&
	    !has_object_file(&obj->oid) &&
	    is_promisor_object(&obj->oid))
		return;

	pathlen = path->len;
	strbuf_addstr(path, name);
	if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_fn)
		r = ctx->filter_fn(ctx->revs->repo,
				   LOFS_BLOB, obj,
				   path->buf, &path->buf[pathlen],
				   ctx->filter_data);
	if (r & LOFR_MARK_SEEN)
		obj->flags |= SEEN;
	if (r & LOFR_DO_SHOW)
		ctx->show_object(obj, path->buf, ctx->show_data);
	strbuf_setlen(path, pathlen);
}

/*
 * Processing a gitlink entry currently does nothing, since
 * we do not recurse into the subproject.
 *
 * We *could* eventually add a flag that actually does that,
 * which would involve:
 *  - is the subproject actually checked out?
 *  - if so, see if the subproject has already been added
 *    to the alternates list, and add it if not.
 *  - process the commit (or tag) the gitlink points to
 *    recursively.
 *
 * However, it's unclear whether there is really ever any
 * reason to see superprojects and subprojects as such a
 * "unified" object pool (potentially resulting in a totally
 * humongous pack - avoiding which was the whole point of
 * having gitlinks in the first place!).
 *
 * So for now, there is just a note that we *could* follow
 * the link, and how to do it. Whether it necessarily makes
 * any sense what-so-ever to ever do that is another issue.
 */
static void process_gitlink(struct traversal_context *ctx,
			    const unsigned char *sha1,
			    struct strbuf *path,
			    const char *name)
{
	/* Nothing to do */
}

static void process_tree(struct traversal_context *ctx,
			 struct tree *tree,
			 struct strbuf *base,
			 const char *name);

static void process_tree_contents(struct traversal_context *ctx,
				  struct tree *tree,
				  struct strbuf *base)
{
	struct tree_desc desc;
	struct name_entry entry;
	enum interesting match = ctx->revs->diffopt.pathspec.nr == 0 ?
		all_entries_interesting : entry_not_interesting;

	init_tree_desc(&desc, tree->buffer, tree->size);

	while (tree_entry(&desc, &entry)) {
		if (match != all_entries_interesting) {
			match = tree_entry_interesting(ctx->revs->repo->index,
						       &entry, base, 0,
						       &ctx->revs->diffopt.pathspec);
			if (match == all_entries_not_interesting)
				break;
			if (match == entry_not_interesting)
				continue;
		}

		if (S_ISDIR(entry.mode)) {
			struct tree *t = lookup_tree(ctx->revs->repo, &entry.oid);
			t->object.flags |= NOT_USER_GIVEN;
			process_tree(ctx, t, base, entry.path);
		}
		else if (S_ISGITLINK(entry.mode))
			process_gitlink(ctx, entry.oid.hash,
					base, entry.path);
		else {
			struct blob *b = lookup_blob(ctx->revs->repo, &entry.oid);
			if (!b) {
				die(_("entry '%s' in tree %s has blob mode, "
				      "but is not a blob"),
				    entry.path, oid_to_hex(&tree->object.oid));
			}
			b->object.flags |= NOT_USER_GIVEN;
			process_blob(ctx, b, base, entry.path);
		}
	}
}

static void process_tree(struct traversal_context *ctx,
			 struct tree *tree,
			 struct strbuf *base,
			 const char *name)
{
	struct object *obj = &tree->object;
	struct rev_info *revs = ctx->revs;
	int baselen = base->len;
	enum list_objects_filter_result r = LOFR_MARK_SEEN | LOFR_DO_SHOW;
	int failed_parse;

	if (!revs->tree_objects)
		return;
	if (!obj)
		die("bad tree object");
	if (obj->flags & (UNINTERESTING | SEEN))
		return;

	failed_parse = parse_tree_gently(tree, 1);
	if (failed_parse) {
		if (revs->ignore_missing_links)
			return;

		/*
		 * Pre-filter known-missing tree objects when explicitly
		 * requested.  This may cause the actual filter to report
		 * an incomplete list of missing objects.
		 */
		if (revs->exclude_promisor_objects &&
		    is_promisor_object(&obj->oid))
			return;

		if (!revs->do_not_die_on_missing_tree)
			die("bad tree object %s", oid_to_hex(&obj->oid));
	}

	strbuf_addstr(base, name);
	if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_fn)
		r = ctx->filter_fn(ctx->revs->repo,
				   LOFS_BEGIN_TREE, obj,
				   base->buf, &base->buf[baselen],
				   ctx->filter_data);
	if (r & LOFR_MARK_SEEN)
		obj->flags |= SEEN;
	if (r & LOFR_DO_SHOW)
		ctx->show_object(obj, base->buf, ctx->show_data);
	if (base->len)
		strbuf_addch(base, '/');

	if (r & LOFR_SKIP_TREE)
		trace_printf("Skipping contents of tree %s...\n", base->buf);
	else if (!failed_parse)
		process_tree_contents(ctx, tree, base);

	if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_fn) {
		r = ctx->filter_fn(ctx->revs->repo,
				   LOFS_END_TREE, obj,
				   base->buf, &base->buf[baselen],
				   ctx->filter_data);
		if (r & LOFR_MARK_SEEN)
			obj->flags |= SEEN;
		if (r & LOFR_DO_SHOW)
			ctx->show_object(obj, base->buf, ctx->show_data);
	}

	strbuf_setlen(base, baselen);
	free_tree_buffer(tree);
}

static void mark_edge_parents_uninteresting(struct commit *commit,
					    struct rev_info *revs,
					    show_edge_fn show_edge)
{
	struct commit_list *parents;

	for (parents = commit->parents; parents; parents = parents->next) {
		struct commit *parent = parents->item;
		if (!(parent->object.flags & UNINTERESTING))
			continue;
		mark_tree_uninteresting(revs->repo, get_commit_tree(parent));
		if (revs->edge_hint && !(parent->object.flags & SHOWN)) {
			parent->object.flags |= SHOWN;
			show_edge(parent);
		}
	}
}

static void add_edge_parents(struct commit *commit,
			     struct rev_info *revs,
			     show_edge_fn show_edge,
			     struct oidset *set)
{
	struct commit_list *parents;

	for (parents = commit->parents; parents; parents = parents->next) {
		struct commit *parent = parents->item;
		struct tree *tree = get_commit_tree(parent);

		if (!tree)
			continue;

		oidset_insert(set, &tree->object.oid);

		if (!(parent->object.flags & UNINTERESTING))
			continue;
		tree->object.flags |= UNINTERESTING;

		if (revs->edge_hint && !(parent->object.flags & SHOWN)) {
			parent->object.flags |= SHOWN;
			show_edge(parent);
		}
	}
}

void mark_edges_uninteresting(struct rev_info *revs,
			      show_edge_fn show_edge,
			      int sparse)
{
	struct commit_list *list;
	int i;

	if (sparse) {
		struct oidset set;
		oidset_init(&set, 16);

		for (list = revs->commits; list; list = list->next) {
			struct commit *commit = list->item;
			struct tree *tree = get_commit_tree(commit);

			if (commit->object.flags & UNINTERESTING)
				tree->object.flags |= UNINTERESTING;

			oidset_insert(&set, &tree->object.oid);
			add_edge_parents(commit, revs, show_edge, &set);
		}

		mark_trees_uninteresting_sparse(revs->repo, &set);
		oidset_clear(&set);
	} else {
		for (list = revs->commits; list; list = list->next) {
			struct commit *commit = list->item;
			if (commit->object.flags & UNINTERESTING) {
				mark_tree_uninteresting(revs->repo,
							get_commit_tree(commit));
				if (revs->edge_hint_aggressive && !(commit->object.flags & SHOWN)) {
					commit->object.flags |= SHOWN;
					show_edge(commit);
				}
				continue;
			}
			mark_edge_parents_uninteresting(commit, revs, show_edge);
		}
	}

	if (revs->edge_hint_aggressive) {
		for (i = 0; i < revs->cmdline.nr; i++) {
			struct object *obj = revs->cmdline.rev[i].item;
			struct commit *commit = (struct commit *)obj;
			if (obj->type != OBJ_COMMIT || !(obj->flags & UNINTERESTING))
				continue;
			mark_tree_uninteresting(revs->repo,
						get_commit_tree(commit));
			if (!(obj->flags & SHOWN)) {
				obj->flags |= SHOWN;
				show_edge(commit);
			}
		}
	}
}

static void add_pending_tree(struct rev_info *revs, struct tree *tree)
{
	add_pending_object(revs, &tree->object, "");
}

static void traverse_trees_and_blobs(struct traversal_context *ctx,
				     struct strbuf *base)
{
	int i;

	assert(base->len == 0);

	for (i = 0; i < ctx->revs->pending.nr; i++) {
		struct object_array_entry *pending = ctx->revs->pending.objects + i;
		struct object *obj = pending->item;
		const char *name = pending->name;
		const char *path = pending->path;
		if (obj->flags & (UNINTERESTING | SEEN))
			continue;
		if (obj->type == OBJ_TAG) {
			obj->flags |= SEEN;
			ctx->show_object(obj, name, ctx->show_data);
			continue;
		}
		if (!path)
			path = "";
		if (obj->type == OBJ_TREE) {
			process_tree(ctx, (struct tree *)obj, base, path);
			continue;
		}
		if (obj->type == OBJ_BLOB) {
			process_blob(ctx, (struct blob *)obj, base, path);
			continue;
		}
		die("unknown pending object %s (%s)",
		    oid_to_hex(&obj->oid), name);
	}
	object_array_clear(&ctx->revs->pending);
}

static void do_traverse(struct traversal_context *ctx)
{
	struct commit *commit;
	struct strbuf csp; /* callee's scratch pad */
	strbuf_init(&csp, PATH_MAX);

	while ((commit = get_revision(ctx->revs)) != NULL) {
		/*
		 * an uninteresting boundary commit may not have its tree
		 * parsed yet, but we are not going to show them anyway
		 */
		if (get_commit_tree(commit)) {
			struct tree *tree = get_commit_tree(commit);
			tree->object.flags |= NOT_USER_GIVEN;
			add_pending_tree(ctx->revs, tree);
		}
		ctx->show_commit(commit, ctx->show_data);

		if (ctx->revs->tree_blobs_in_commit_order)
			/*
			 * NEEDSWORK: Adding the tree and then flushing it here
			 * needs a reallocation for each commit. Can we pass the
			 * tree directory without allocation churn?
			 */
			traverse_trees_and_blobs(ctx, &csp);
	}
	traverse_trees_and_blobs(ctx, &csp);
	strbuf_release(&csp);
}

void traverse_commit_list(struct rev_info *revs,
			  show_commit_fn show_commit,
			  show_object_fn show_object,
			  void *show_data)
{
	struct traversal_context ctx;
	ctx.revs = revs;
	ctx.show_commit = show_commit;
	ctx.show_object = show_object;
	ctx.show_data = show_data;
	ctx.filter_fn = NULL;
	ctx.filter_data = NULL;
	do_traverse(&ctx);
}

void traverse_commit_list_filtered(
	struct list_objects_filter_options *filter_options,
	struct rev_info *revs,
	show_commit_fn show_commit,
	show_object_fn show_object,
	void *show_data,
	struct oidset *omitted)
{
	struct traversal_context ctx;
	filter_free_fn filter_free_fn = NULL;

	ctx.revs = revs;
	ctx.show_object = show_object;
	ctx.show_commit = show_commit;
	ctx.show_data = show_data;
	ctx.filter_fn = NULL;

	ctx.filter_data = list_objects_filter__init(omitted, filter_options,
						    &ctx.filter_fn, &filter_free_fn);
	do_traverse(&ctx);
	if (ctx.filter_data && filter_free_fn)
		filter_free_fn(ctx.filter_data);
}
Commit	Line	Data
c64ed70d JH	1	#include "cache.h"
	2	#include "tag.h"
	3	#include "commit.h"
	4	#include "tree.h"
	5	#include "blob.h"
	6	#include "diff.h"
	7	#include "tree-walk.h"
	8	#include "revision.h"
	9	#include "list-objects.h"
25ec7bca JH	10	#include "list-objects-filter.h"
25ec7bca JH	11	#include "list-objects-filter-options.h"
df11e196	12	#include "packfile.h"
cbd53a21	13	#include "object-store.h"
8b10a206	14	#include "trace.h"
c64ed70d	15
f447a499 MD	16	struct traversal_context {
	17	struct rev_info *revs;
	18	show_object_fn show_object;
	19	show_commit_fn show_commit;
	20	void *show_data;
	21	filter_object_fn filter_fn;
	22	void *filter_data;
	23	};
	24
	25	static void process_blob(struct traversal_context *ctx,
c64ed70d	26	struct blob *blob,
bd64516a	27	struct strbuf *path,
f447a499	28	const char *name)
c64ed70d JH	29	{
c64ed70d JH	30	struct object *obj = &blob->object;
de1e67d0	31	size_t pathlen;
25ec7bca	32	enum list_objects_filter_result r = LOFR_MARK_SEEN \| LOFR_DO_SHOW;
c64ed70d	33
f447a499	34	if (!ctx->revs->blob_objects)
c64ed70d	35	return;
a301b0c8 MK	36	if (!obj)
a301b0c8 MK	37	die("bad blob object");
c64ed70d JH	38	if (obj->flags & (UNINTERESTING \| SEEN))
c64ed70d JH	39	return;
de1e67d0	40
df11e196 JT	41	/*
	42	* Pre-filter known-missing objects when explicitly requested.
	43	* Otherwise, a missing object error message may be reported
	44	* later (depending on other filtering criteria).
	45	*
	46	* Note that this "--exclude-promisor-objects" pre-filtering
	47	* may cause the actual filter to report an incomplete list
	48	* of missing objects.
	49	*/
f447a499	50	if (ctx->revs->exclude_promisor_objects &&
df11e196 JT	51	!has_object_file(&obj->oid) &&
	52	is_promisor_object(&obj->oid))
	53	return;
	54
de1e67d0 JK	55	pathlen = path->len;
de1e67d0 JK	56	strbuf_addstr(path, name);
99c9aa95	57	if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_fn)
01d40c84 NTND	58	r = ctx->filter_fn(ctx->revs->repo,
01d40c84 NTND	59	LOFS_BLOB, obj,
f447a499 MD	60	path->buf, &path->buf[pathlen],
f447a499 MD	61	ctx->filter_data);
25ec7bca JH	62	if (r & LOFR_MARK_SEEN)
	63	obj->flags \|= SEEN;
	64	if (r & LOFR_DO_SHOW)
f447a499	65	ctx->show_object(obj, path->buf, ctx->show_data);
de1e67d0	66	strbuf_setlen(path, pathlen);
c64ed70d JH	67	}
c64ed70d JH	68
6e2f441b LT	69	/*
	70	* Processing a gitlink entry currently does nothing, since
	71	* we do not recurse into the subproject.
	72	*
	73	* We could eventually add a flag that actually does that,
	74	* which would involve:
	75	* - is the subproject actually checked out?
	76	* - if so, see if the subproject has already been added
	77	* to the alternates list, and add it if not.
	78	* - process the commit (or tag) the gitlink points to
	79	* recursively.
	80	*
	81	* However, it's unclear whether there is really ever any
	82	* reason to see superprojects and subprojects as such a
	83	* "unified" object pool (potentially resulting in a totally
	84	* humongous pack - avoiding which was the whole point of
	85	* having gitlinks in the first place!).
	86	*
	87	* So for now, there is just a note that we could follow
	88	* the link, and how to do it. Whether it necessarily makes
	89	* any sense what-so-ever to ever do that is another issue.
	90	*/
f447a499	91	static void process_gitlink(struct traversal_context *ctx,
6e2f441b	92	const unsigned char *sha1,
bd64516a	93	struct strbuf *path,
f447a499	94	const char *name)
6e2f441b LT	95	{
	96	/* Nothing to do */
	97	}
	98
92024891	99	static void process_tree(struct traversal_context *ctx,
c64ed70d	100	struct tree *tree,
cc5fa2fd	101	struct strbuf *base,
92024891 MD	102	const char *name);
	103
	104	static void process_tree_contents(struct traversal_context *ctx,
	105	struct tree *tree,
	106	struct strbuf *base)
c64ed70d	107	{
c64ed70d JH	108	struct tree_desc desc;
c64ed70d JH	109	struct name_entry entry;
92024891 MD	110	enum interesting match = ctx->revs->diffopt.pathspec.nr == 0 ?
	111	all_entries_interesting : entry_not_interesting;
	112
	113	init_tree_desc(&desc, tree->buffer, tree->size);
	114
	115	while (tree_entry(&desc, &entry)) {
	116	if (match != all_entries_interesting) {
67022e02 NTND	117	match = tree_entry_interesting(ctx->revs->repo->index,
67022e02 NTND	118	&entry, base, 0,
92024891 MD	119	&ctx->revs->diffopt.pathspec);
	120	if (match == all_entries_not_interesting)
	121	break;
	122	if (match == entry_not_interesting)
	123	continue;
	124	}
	125
99c9aa95	126	if (S_ISDIR(entry.mode)) {
ea82b2a0	127	struct tree *t = lookup_tree(ctx->revs->repo, &entry.oid);
99c9aa95 MD	128	t->object.flags \|= NOT_USER_GIVEN;
	129	process_tree(ctx, t, base, entry.path);
	130	}
92024891	131	else if (S_ISGITLINK(entry.mode))
ea82b2a0	132	process_gitlink(ctx, entry.oid.hash,
92024891	133	base, entry.path);
99c9aa95	134	else {
ea82b2a0	135	struct blob *b = lookup_blob(ctx->revs->repo, &entry.oid);
23c20445 TB	136	if (!b) {
	137	die(_("entry '%s' in tree %s has blob mode, "
	138	"but is not a blob"),
	139	entry.path, oid_to_hex(&tree->object.oid));
	140	}
99c9aa95 MD	141	b->object.flags \|= NOT_USER_GIVEN;
	142	process_blob(ctx, b, base, entry.path);
	143	}
92024891 MD	144	}
	145	}
	146
f447a499	147	static void process_tree(struct traversal_context *ctx,
c64ed70d	148	struct tree *tree,
cc5fa2fd	149	struct strbuf *base,
f447a499	150	const char *name)
c64ed70d JH	151	{
c64ed70d JH	152	struct object *obj = &tree->object;
f447a499	153	struct rev_info *revs = ctx->revs;
cc5fa2fd	154	int baselen = base->len;
25ec7bca	155	enum list_objects_filter_result r = LOFR_MARK_SEEN \| LOFR_DO_SHOW;
7c0fe330	156	int failed_parse;
c64ed70d JH	157
	158	if (!revs->tree_objects)
	159	return;
a301b0c8 MK	160	if (!obj)
a301b0c8 MK	161	die("bad tree object");
c64ed70d JH	162	if (obj->flags & (UNINTERESTING \| SEEN))
c64ed70d JH	163	return;
7c0fe330 MD	164
	165	failed_parse = parse_tree_gently(tree, 1);
	166	if (failed_parse) {
2db1a43f VM	167	if (revs->ignore_missing_links)
2db1a43f VM	168	return;
df11e196 JT	169
	170	/*
	171	* Pre-filter known-missing tree objects when explicitly
	172	* requested. This may cause the actual filter to report
	173	* an incomplete list of missing objects.
	174	*/
	175	if (revs->exclude_promisor_objects &&
	176	is_promisor_object(&obj->oid))
	177	return;
	178
7c0fe330 MD	179	if (!revs->do_not_die_on_missing_tree)
7c0fe330 MD	180	die("bad tree object %s", oid_to_hex(&obj->oid));
2db1a43f	181	}
13528ab3	182
13528ab3	183	strbuf_addstr(base, name);
99c9aa95	184	if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_fn)
01d40c84 NTND	185	r = ctx->filter_fn(ctx->revs->repo,
01d40c84 NTND	186	LOFS_BEGIN_TREE, obj,
f447a499 MD	187	base->buf, &base->buf[baselen],
f447a499 MD	188	ctx->filter_data);
25ec7bca JH	189	if (r & LOFR_MARK_SEEN)
	190	obj->flags \|= SEEN;
	191	if (r & LOFR_DO_SHOW)
f447a499	192	ctx->show_object(obj, base->buf, ctx->show_data);
13528ab3 JK	193	if (base->len)
13528ab3 JK	194	strbuf_addch(base, '/');
cc5fa2fd	195
8b10a206 MD	196	if (r & LOFR_SKIP_TREE)
	197	trace_printf("Skipping contents of tree %s...\n", base->buf);
	198	else if (!failed_parse)
7c0fe330	199	process_tree_contents(ctx, tree, base);
c64ed70d	200
99c9aa95	201	if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_fn) {
01d40c84 NTND	202	r = ctx->filter_fn(ctx->revs->repo,
01d40c84 NTND	203	LOFS_END_TREE, obj,
f447a499 MD	204	base->buf, &base->buf[baselen],
f447a499 MD	205	ctx->filter_data);
25ec7bca JH	206	if (r & LOFR_MARK_SEEN)
	207	obj->flags \|= SEEN;
	208	if (r & LOFR_DO_SHOW)
f447a499	209	ctx->show_object(obj, base->buf, ctx->show_data);
25ec7bca JH	210	}
25ec7bca JH	211
cc5fa2fd	212	strbuf_setlen(base, baselen);
6e454b9a	213	free_tree_buffer(tree);
c64ed70d JH	214	}
c64ed70d JH	215
8d1d8f83 JH	216	static void mark_edge_parents_uninteresting(struct commit *commit,
	217	struct rev_info *revs,
	218	show_edge_fn show_edge)
	219	{
	220	struct commit_list *parents;
	221
	222	for (parents = commit->parents; parents; parents = parents->next) {
	223	struct commit *parent = parents->item;
	224	if (!(parent->object.flags & UNINTERESTING))
	225	continue;
b3c7eef9	226	mark_tree_uninteresting(revs->repo, get_commit_tree(parent));
8d1d8f83 JH	227	if (revs->edge_hint && !(parent->object.flags & SHOWN)) {
	228	parent->object.flags \|= SHOWN;
	229	show_edge(parent);
	230	}
	231	}
	232	}
	233
4f6d26b1 DS	234	static void add_edge_parents(struct commit *commit,
	235	struct rev_info *revs,
	236	show_edge_fn show_edge,
	237	struct oidset *set)
	238	{
	239	struct commit_list *parents;
	240
	241	for (parents = commit->parents; parents; parents = parents->next) {
	242	struct commit *parent = parents->item;
	243	struct tree *tree = get_commit_tree(parent);
	244
	245	if (!tree)
	246	continue;
	247
	248	oidset_insert(set, &tree->object.oid);
	249
	250	if (!(parent->object.flags & UNINTERESTING))
	251	continue;
	252	tree->object.flags \|= UNINTERESTING;
	253
	254	if (revs->edge_hint && !(parent->object.flags & SHOWN)) {
	255	parent->object.flags \|= SHOWN;
	256	show_edge(parent);
	257	}
	258	}
	259	}
	260
	261	void mark_edges_uninteresting(struct rev_info *revs,
	262	show_edge_fn show_edge,
	263	int sparse)
8d1d8f83	264	{
e76a5fb4	265	struct commit_list *list;
fbd4a703 NTND	266	int i;
fbd4a703 NTND	267
4f6d26b1 DS	268	if (sparse) {
	269	struct oidset set;
	270	oidset_init(&set, 16);
	271
	272	for (list = revs->commits; list; list = list->next) {
	273	struct commit *commit = list->item;
	274	struct tree *tree = get_commit_tree(commit);
8d1d8f83	275
4f6d26b1 DS	276	if (commit->object.flags & UNINTERESTING)
	277	tree->object.flags \|= UNINTERESTING;
	278
	279	oidset_insert(&set, &tree->object.oid);
	280	add_edge_parents(commit, revs, show_edge, &set);
	281	}
	282
	283	mark_trees_uninteresting_sparse(revs->repo, &set);
	284	oidset_clear(&set);
	285	} else {
	286	for (list = revs->commits; list; list = list->next) {
	287	struct commit *commit = list->item;
	288	if (commit->object.flags & UNINTERESTING) {
	289	mark_tree_uninteresting(revs->repo,
	290	get_commit_tree(commit));
	291	if (revs->edge_hint_aggressive && !(commit->object.flags & SHOWN)) {
	292	commit->object.flags \|= SHOWN;
	293	show_edge(commit);
	294	}
	295	continue;
fbd4a703	296	}
4f6d26b1	297	mark_edge_parents_uninteresting(commit, revs, show_edge);
8d1d8f83	298	}
8d1d8f83	299	}
4f6d26b1	300
1684c1b2	301	if (revs->edge_hint_aggressive) {
200abe74 JK	302	for (i = 0; i < revs->cmdline.nr; i++) {
	303	struct object *obj = revs->cmdline.rev[i].item;
	304	struct commit commit = (struct commit )obj;
	305	if (obj->type != OBJ_COMMIT \|\| !(obj->flags & UNINTERESTING))
	306	continue;
b3c7eef9 NTND	307	mark_tree_uninteresting(revs->repo,
b3c7eef9 NTND	308	get_commit_tree(commit));
200abe74 JK	309	if (!(obj->flags & SHOWN)) {
	310	obj->flags \|= SHOWN;
	311	show_edge(commit);
	312	}
fbd4a703 NTND	313	}
fbd4a703 NTND	314	}
8d1d8f83 JH	315	}
8d1d8f83 JH	316
8d2dfc49 LT	317	static void add_pending_tree(struct rev_info revs, struct tree tree)
	318	{
	319	add_pending_object(revs, &tree->object, "");
	320	}
	321
f447a499 MD	322	static void traverse_trees_and_blobs(struct traversal_context *ctx,
f447a499 MD	323	struct strbuf *base)
c64ed70d JH	324	{
c64ed70d JH	325	int i;
c64ed70d	326
91904f56 SB	327	assert(base->len == 0);
91904f56 SB	328
f447a499 MD	329	for (i = 0; i < ctx->revs->pending.nr; i++) {
f447a499 MD	330	struct object_array_entry *pending = ctx->revs->pending.objects + i;
c64ed70d JH	331	struct object *obj = pending->item;
c64ed70d JH	332	const char *name = pending->name;
20739490	333	const char *path = pending->path;
c64ed70d JH	334	if (obj->flags & (UNINTERESTING \| SEEN))
	335	continue;
	336	if (obj->type == OBJ_TAG) {
	337	obj->flags \|= SEEN;
f447a499	338	ctx->show_object(obj, name, ctx->show_data);
c64ed70d JH	339	continue;
c64ed70d JH	340	}
20739490 JK	341	if (!path)
20739490 JK	342	path = "";
c64ed70d	343	if (obj->type == OBJ_TREE) {
f447a499	344	process_tree(ctx, (struct tree *)obj, base, path);
c64ed70d JH	345	continue;
	346	}
	347	if (obj->type == OBJ_BLOB) {
f447a499	348	process_blob(ctx, (struct blob *)obj, base, path);
c64ed70d JH	349	continue;
	350	}
	351	die("unknown pending object %s (%s)",
f2fd0760	352	oid_to_hex(&obj->oid), name);
c64ed70d	353	}
f447a499	354	object_array_clear(&ctx->revs->pending);
91904f56 SB	355	}
91904f56 SB	356
f447a499	357	static void do_traverse(struct traversal_context *ctx)
91904f56 SB	358	{
	359	struct commit *commit;
	360	struct strbuf csp; /* callee's scratch pad */
	361	strbuf_init(&csp, PATH_MAX);
	362
f447a499	363	while ((commit = get_revision(ctx->revs)) != NULL) {
91904f56 SB	364	/*
	365	* an uninteresting boundary commit may not have its tree
	366	* parsed yet, but we are not going to show them anyway
	367	*/
99c9aa95 MD	368	if (get_commit_tree(commit)) {
	369	struct tree *tree = get_commit_tree(commit);
	370	tree->object.flags \|= NOT_USER_GIVEN;
	371	add_pending_tree(ctx->revs, tree);
	372	}
f447a499	373	ctx->show_commit(commit, ctx->show_data);
ce5b6f9b	374
f447a499	375	if (ctx->revs->tree_blobs_in_commit_order)
ce5b6f9b SB	376	/*
	377	* NEEDSWORK: Adding the tree and then flushing it here
	378	* needs a reallocation for each commit. Can we pass the
	379	* tree directory without allocation churn?
	380	*/
f447a499	381	traverse_trees_and_blobs(ctx, &csp);
91904f56	382	}
f447a499	383	traverse_trees_and_blobs(ctx, &csp);
91904f56	384	strbuf_release(&csp);
c64ed70d	385	}
25ec7bca JH	386
	387	void traverse_commit_list(struct rev_info *revs,
	388	show_commit_fn show_commit,
	389	show_object_fn show_object,
	390	void *show_data)
	391	{
f447a499 MD	392	struct traversal_context ctx;
	393	ctx.revs = revs;
	394	ctx.show_commit = show_commit;
	395	ctx.show_object = show_object;
	396	ctx.show_data = show_data;
	397	ctx.filter_fn = NULL;
	398	ctx.filter_data = NULL;
	399	do_traverse(&ctx);
25ec7bca JH	400	}
	401
	402	void traverse_commit_list_filtered(
	403	struct list_objects_filter_options *filter_options,
	404	struct rev_info *revs,
	405	show_commit_fn show_commit,
	406	show_object_fn show_object,
	407	void *show_data,
	408	struct oidset *omitted)
	409	{
f447a499	410	struct traversal_context ctx;
25ec7bca	411	filter_free_fn filter_free_fn = NULL;
f447a499 MD	412
	413	ctx.revs = revs;
	414	ctx.show_object = show_object;
	415	ctx.show_commit = show_commit;
	416	ctx.show_data = show_data;
	417	ctx.filter_fn = NULL;
	418
	419	ctx.filter_data = list_objects_filter__init(omitted, filter_options,
	420	&ctx.filter_fn, &filter_free_fn);
	421	do_traverse(&ctx);
	422	if (ctx.filter_data && filter_free_fn)
	423	filter_free_fn(ctx.filter_data);
25ec7bca	424	}